package com.atguigu.rabbitmq.one;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * @author: like
 * @Date: 2021/07/16 22:58
 */
public class Consumer {

    //队列名称
    public static final String QUEUE_NAME = "hello";

    //接收消息
    public static void main(String[] args) throws IOException, TimeoutException {
        //创建一个链接工厂
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("118.25.37.107");
        factory.setUsername("admin");
        factory.setPassword("123456");

        //创建连接
        Connection connection = factory.newConnection();

        //获取信道
        Channel channel = connection.createChannel();

        System.out.println("等待接收消息.........");


        //推送的消息如何进行消费的接口回调
        DeliverCallback deliverCallback = (consumerTag, message) -> {
            System.out.println(new String(message.getBody()));
        };
        //取消消费的一个回调接口 如在消费的时候队列被删除掉了
        CancelCallback cancelCallback = consumerTag -> {
            System.out.println("消费消息被中断");
        };

        /**
         * 消费者消费消息
         * 1、消费哪个队列
         * 2、消费成功之后是否要自动应答 true 自动应答 false 手动应答
         * 3、消费者未成功消费的回调
         * 4、消费者取消消费的回调
         */
        channel.basicConsume(QUEUE_NAME, true, deliverCallback, cancelCallback);


    }


}
